1. The problem statement, all variables and given/known data why the maximum bending moment at the center is w(l^2) /8 ? 2. Relevant equations 3. The attempt at a solution shouldn't it be = 0 ? when we take the moment about the center , the reaction force at the left will generate clockwise moment , while the reaction force at the right will generate antoclockwise moment , they will cancel out each other , resulting the moment = 0? Am i right ?